Evaluation of physiological seed quality in sunflower genotypes

Authors

  • Danúbia Aparecida Costa Nobre
  • Delacyr Silva Brandão Junior
  • Cândido Alves Costa
  • José Carlos Fialho de Resende
  • Márcia Martins

Abstract

Propagation is by seed chamber Sunflower saw , so it is necessary the use of high quality seeds . The objective of this study was to determine the physical , physiological and sanitary quality of seeds of different sunflower genotypes . Ten seeds sunflower genotypes were evaluated to determine their quality , through the following tests : moisture ; mass of thousand seeds ; biometrics seed ( length, width and thickness ) ; germination , first count ; germination speed index , tetrazolium test , and seed health test . The data collected were subjected to analysis of variance and Scott - Knott test at 5 % probability . The HLA genotypes CNZ CIRO and 11-26 have low germination percentage and vigor . Have Helio 358 , CF 101 and M 734 exhibited low vigor and viability by the tetrazolium test. Seed quality of HLA genotypes 11-26 and CNZ CIRO was influenced by fungi of the genus Alternaria and Aspergillus , respectively.

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Author Biographies

  • Danúbia Aparecida Costa Nobre
    Agronomist (Unimontes), Masters in Agricultural Sciences (UFMG) and currently a doctoral student in Plant Science UFV.
  • Delacyr Silva Brandão Junior
    Professor and Director, Institute of Agricultural Sciences, Federal University of Minas Gerais
  • Cândido Alves Costa
    Professor, Institute of Agricultural Sciences, Federal University of Minas Gerais
  • José Carlos Fialho de Resende
    Researcher of Agricultural Research of Minas Gerais
  • Márcia Martins
    Professor, Institute of Agricultural Sciences, Federal University of Minas Gerais

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Published

2013-08-22

Issue

Vol. 56 No. 3 (2013): RCA

Section

Scientific Articles

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